Operating systems

Three-Column Liquid-Layout Viewport provides a viewport-based user interface for a data-oriented Web application. It is good for use with Web applications implemented with a single Web page. The basic skeleton of the user-interface is similar to that used in MS Outlook and other applications: a left-hand column, a main center column divided into a master-detail pane arrangement, and a right-hand column. The reference implementation uses YUI3 as a JavaScript engine. However, YUI3 only does the resizing and DOM access, so other frameworks should work with it as well. It differs significantly from the ExtJS Viewport in that it aligns closely with HTML and CSS, instead of layering its own rendering engine on top of them. This results in a viewport that is fast to debug, clear, fast to load, small to download, and has a robust level of functionality and extensibility.

Exponent CMS is a content management system for Web sites. It allows site owners to easily create and manage dynamic Web sites without necessarily directly coding Web pages or managing site navigation. Exponent uses an intuitive and flexible content editing system that allows Web pages to be edited on the page as it is displayed. This avoids the need for more back-end administration or for navigating many administration pages to add a simple line of text. You can simply visit the page you need to edit as if you were a site visitor, and make the change.

LampCMS is a Q&A Web site with best features of StackOverflow and Quora mashed together. It integrates with Twitter, Facebook, Tumblr, and the Blogger API, and can post questions and answers to all of these APIs. It is very fast and can handle millions of monthly visitors on a single inexpensive server.